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Guarantor and Nonguarantor Financial Statements - Condensed Consolidating Statements of Cash Flows (Detail) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2018
Condensed Cash Flow Statements, Captions [Line Items] |  |
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: | $ (316,832) | $ (92,062)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Capital expenditures | (100,674) | (107,482)
Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired | (2,142) | (264,702)
Contributions to unconsolidated subsidiaries | (35,187) | (21,042)
Distributions from unconsolidated subsidiaries | 10,273 | 28,235
Net proceeds from disposition of real estate held for investment |  | 14,174
Purchase of equity securities | (5,601) | (13,718)
Proceeds from sale of equity securities | 9,869 | 8,889
Purchase of available for sale debt securities | (2,812) | (18,723)
Proceeds from the sale of available for sale debt securities | 1,466 | 4,121
Other investing activities, net | 224 | (6,384)
Net cash used in investing activities | (124,584) | (376,632)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Proceeds from senior term loans | 300,000 | 550,000
Repayment of senior term loans | (300,000) |
Proceeds from revolving credit facility | 1,596,000 | 2,000,000
Repayment of revolving credit facility | (1,366,000) | (1,402,000)
Repayment of 5.00% senior notes (including premium) |  | (820,000)
Proceeds from notes payable on real estate | 4,165 | 1,153
Repayment of notes payable on real estate |  | (16,019)
Repurchase of common stock | (45,088) |
Acquisition of businesses (cash (paid) received for acquisitions more than three months after purchase date) | (28,517) | (11,183)
Repayment of debt assumed in acquisition of FacilitySource |  | (26,295)
Units repurchased for payment of taxes on equity awards | (9,565) | (4,630)
Non-controlling interest contributions | 41,977 | 2,744
Non-controlling interest distributions | (2,563) | (7,652)
Other financing activities, net | (4,435) | (76)
Net cash (used in) provided by financing activities | 185,974 | 266,042
Effect of currency exchange rate changes on cash and cash equivalents and restricted cash | 4,723 | (18,821)
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (250,719) | (221,473)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD | 863,944 | 824,819
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD | 613,225 | 603,346
Cash paid during the period for: |  |
Interest | 46,525 | 59,337
Income taxes, net | 208,876 | 159,833
Parent [Member] |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: | 70,594 | 51,094
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Repurchase of common stock | (45,088) |
Units repurchased for payment of taxes on equity awards | (9,565) | (4,630)
(Increase) decrease in intercompany receivables, net | (15,941) | (46,622)
Other financing activities, net |  | 158
Net cash (used in) provided by financing activities | (70,594) | (51,094)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD | 7 | 7
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD | 7 | 7
CBRE Services [Member] |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: | 21,038 | 2,234
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Proceeds from senior term loans | 300,000 | 550,000
Repayment of senior term loans | (300,000) |
Proceeds from revolving credit facility | 1,596,000 | 2,000,000
Repayment of revolving credit facility | (1,366,000) | (1,402,000)
Repayment of 5.00% senior notes (including premium) |  | (820,000)
(Increase) decrease in intercompany receivables, net | (273,333) | (337,235)
Other financing activities, net | (3,405) | (199)
Net cash (used in) provided by financing activities | (46,738) | (9,434)
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (25,700) | (7,200)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD | 34,063 | 15,604
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD | 8,363 | 8,404
Cash paid during the period for: |  |
Interest | 34,945 | 58,814
Guarantor Subsidiaries [Member] |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: | (186,739) | (56,141)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Capital expenditures | (56,967) | (65,676)
Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired | (1,798) | (259,338)
Contributions to unconsolidated subsidiaries | (29,632) | (17,030)
Distributions from unconsolidated subsidiaries | 9,720 | 24,986
Purchase of equity securities | (5,601) | (13,718)
Proceeds from sale of equity securities | 8,311 | 8,889
Purchase of available for sale debt securities | (2,812) | (18,723)
Proceeds from the sale of available for sale debt securities | 1,466 | 4,121
Other investing activities, net | 325 | (6,454)
Net cash used in investing activities | (76,988) | (342,943)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Acquisition of businesses (cash (paid) received for acquisitions more than three months after purchase date) | (24,558) | (13,166)
Repayment of debt assumed in acquisition of FacilitySource |  | (26,295)
(Increase) decrease in intercompany receivables, net | 115,903 | 405,196
Net cash (used in) provided by financing activities | 91,345 | 365,735
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (172,382) | (33,349)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD | 274,948 | 114,143
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD | 102,566 | 80,794
Cash paid during the period for: |  |
Income taxes, net | 29,076 | 77,076
Nonguarantor Subsidiaries [Member] |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |
CASH FLOWS PROVIDED BY (USED IN) OPERATING ACTIVITIES: | (221,725) | (89,249)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Capital expenditures | (43,707) | (41,806)
Acquisition of businesses, including net assets acquired, intangibles and goodwill, net of cash acquired | (344) | (5,364)
Contributions to unconsolidated subsidiaries | (5,555) | (4,012)
Distributions from unconsolidated subsidiaries | 553 | 3,249
Net proceeds from disposition of real estate held for investment |  | 14,174
Proceeds from sale of equity securities | 1,558 |
Other investing activities, net | (101) | 70
Net cash used in investing activities | (47,596) | (33,689)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Proceeds from notes payable on real estate | 4,165 | 1,153
Repayment of notes payable on real estate |  | (16,019)
Acquisition of businesses (cash (paid) received for acquisitions more than three months after purchase date) | (3,959) | 1,983
Non-controlling interest contributions | 41,977 | 2,744
Non-controlling interest distributions | (2,563) | (7,652)
(Increase) decrease in intercompany receivables, net | 173,371 | (21,339)
Other financing activities, net | (1,030) | (35)
Net cash (used in) provided by financing activities | 211,961 | (39,165)
Effect of currency exchange rate changes on cash and cash equivalents and restricted cash | 4,723 | (18,821)
NET DECREASE IN CASH AND CASH EQUIVALENTS AND RESTRICTED CASH | (52,637) | (180,924)
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT BEGINNING OF PERIOD | 554,926 | 695,065
CASH AND CASH EQUIVALENTS AND RESTRICTED CASH, AT END OF PERIOD | 502,289 | 514,141
Cash paid during the period for: |  |
Interest | 11,580 | 523
Income taxes, net | $ 179,800 | $ 82,757

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- Definition Amount of cash inflow (outflow) from long-term debt wholly or partially secured by collateral. Excludes tax exempt secured debt. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
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